Mixing-machine.



No. 835,558. PATBNTED NOV. 13, 1906.

E. RUTTKAMP. MIXING MACHINE.

APPLIGATION FILED JAN.24,1906.

m-mii UNITED STATES PA TENT OFFICE.

ERNEST RUTTKAMP, OF JERSEY OITY, NE W JERSEY, ASSIGNOR TORUTTKAMP-MINCKE CO., OF JERSEY CITY, NEW JERSEY, A COR- PORATION OF NEWJERSEY.

Specification of Letters Patent.

Patented Nov. 13, 1906.

I Application filed anuary 24,1906. Serial No. 297-592.

To all whom it may concern:

Be it known that I, ERNEST RUTTKAMP, a citizen of the United States,residing at Jersey City, Hudson county, State of New J ersey, haveinvented new and useful Improvements in Mixing-Machines, of which thefollowing is a specification.

This invention relates to a dough-mixing machine which is so constructedthat all parts of the dou h are thoroughly subjected to the action of te beaters. The machine is provided with means for coupling differenttroughs successively to the beating mechanism and with means foroperating with equal efficiency upon larger or smaller batches of dough.

In the accompanying drawings, Figure 1 is a front elevation of myimproved mixing machine with the trough partly broken away; Fig. 2, arear elevation, partly broken away, thereof; Fig. 3, a cross-section online 3 3, Fig. 1. Figs. 4 and 5 are details of the tappets; Fig. 6, adetail. of part of the shipping-bar with clamp; Fig. 7, a longitudinalsection through the carriage; Fig. 8, a crosssection on line 8 8, Fig. 7Fig. 9, a detail of the coupling between frame and trough, and Fig. 10 adetail of the removable partition.

The machine comprises, essentially, a frame carrying the heaters andatrough containing the dough or sponge and adapted to be removablycoupled to said frame. The beaters rotate and reciprocate intermittentlywithin the trough, so that all the dough is thoroughly treated, and anaccumulation of insufficiently-mixed dou h at the ends of the trough isavoided. W en the dough has been thoroughly mixed, the heaters are swungup and the trough is uncoupled from the frame and moved to another partof the bake-shop, where it may be used as a bench, while a second troughcontaining a fresh batch of dough is coupled to the frame. Thus anysuitable number'of troughs may be used in conjunction with the samemixing mechanism, so that valuable space is economized and economy ispracticed.

The letters a indicate a pair of upri hts mounted upon a suitable basea, the whole constituting the frame of the machine.

1) represents a trough supported on casters 1) and adapted to beremovably coupled to the frame. The front sides of uprights a haveconcave sections a of a curvature corresponding to that of the trough,Fig. 9. A perforated pin a of each u right a extends through an openingof troug b and is locked thereto by a curved wedge a In uprights a isjournaled. a counter-shaft c, rotated from power-shaft d by gear-wheelsd c. The shaft 0 rotates a lead-screw e alternately in oppositedirections. To this effect there are loosely mounted on shaft 0 agearwheel f and a chain-wheel 9. Wheel f intergears with a wheel f, faston lead-screw e, and is provided with a relatively fixed member f 2 of aclutch, the movable member 0 of which is slidable on shaft 0. Wheel 9 isby chain it connected to a chain-wheel g, fast on screw 2, and isprovided with the relatively fixed clutch member 9 cooperating with theslidable member c By alternately coupling the wheels f g to shaft 0 inmanner hereinafter described the desired rotation of screw 0 alternatelyin opposite directions will be efiected.

J represents a carriage slidable on a shaft k, which is rotated fromshaft 0 by gearwheels 0 7c. Shaft 7c is provided with a longitudinalgroove en aged by a feather Z of a chain-wheel Z, whic is thus slidableon the shaft and rotatable therewith. Chain-wheel l is inclosed withinan enlargement or housing 1' of carriage J, the side walls of whichengage wheel l and feather I, so that any reciprocating movementimparted to the carriage will be transmitted to the wheel and feather.Within housing is journaled a shaft m, proj ecting laterally out of thesame and carrying the beaters or mixin -blades m. Shaft m is rotatedfrom wheel %by chain m and wheel m The front of housing is extended toform an arm j, having a rolfer 1' adapted to rest on the top oftrough b,so as to sustain the carriage in position during the mixing operation.When this operation is completed, the carriage is swung up on shaft isby'hanales 3' so as to lift the beaters out of the trough.

From each end of housing 9' projects a hub j, which is embraced by aperforated arm n, formed at the end of a nut or threaded sleeve n, whichtravels upon lead-screwe. The distance between the arms n n is greaterthan the width of housing 1', Figs. 1, 2, and 7, so

that the lugs have a certain play along hubs ico 7". Motion is impartedto carriage J from nut n when the-arms n engage the sides of housing j,which thus constitute stops, and therefore the nut runs idle for sometime before takin the carriage along. The conseue'nce is t at thereciprocating movement of t e nut is converted. into an intermittentreciprocating movement of the carriage, the latter remaining stationaryon the shaft for some time at the ends of the race before commencing itsreturn movement.

The means for operating the clutch members c c of shaft 0 are asfollows: To uprights a is connected by pivoted links 0 o alongitudinally-slidable shipping-bar p. Link 0 is extended upwardlybeyond its -connection with bar p and carries an overbalancing-weight 0Rod p isprovided with a pair of clamps g, having ins g, which areengaged b the upper for ed ends of levers g plvote to base a at q". Oneof the levers 2 engages'by in g the clutch member 0 W ile the seoonlever 9 en ages in like manner clutch member 0 hus by the meansdescribed therod p u on being reciprocated will operate the c utches inthe manner desired, so that when one of the clutches is closed the otheris open.

Upon rod p are adjustably mounted b clamp-screws 1" a air or tappets r.Eac tappet is erforate to accommodate a pluner 1' in uenced by spring Tand having a ead rfiadapted to be engaged by housing y' of carriage J.When the carriage arrives near the end of its race, it will push plunger1' in the direction of its travel and compress spring T The carriagewill then by spring r and ta pet 1 move rod p in the direction desired,t us oscillating links 0 o. The object of the spring 1' is to throw theoverbalanced link orapidly over, thus overcoming the deadcenter.

If it is desired to mix a comparatively small batch of sponge, atransverse partition sis fitted into trou h b, so as to subdivide thesame into a pair 0 compartments, either one of which may be charged withthe s onge. One of the tappets r is in this case so a justed that therace of carriage J is reduced to correspond to the length of thecompartment charged with the sponge.

W at I claim is- V 1. In a mixing-machine, a trough, a carriage providedwith beaters, means for ime parting an intermittent recipro'catory androtary movement to the beaters, a reciproeating member, spring-actuatedelements carried by the reciprocating member for engagement b thecarriage to shift the reciprocating mem er and automatically reverse thedirection of movement of the carriage.

2. In a mixing-machine, a lead-screw, and

a threaded sleeve having arms, combined with a slidable carriage havingstops adapted to be engaged at o posite sides alternately by said arms,and eaters connected to the carriage the distance between the arms beinggreater than the distance between the stops, substantially as specified.

4. In a mixing-machine, a leadscrew, and a threaded sleeve havingperforated arms, combined with a slidable carriage havinglaterally-projecting hubs embraced by said arms, and heaters connectedto the carriage, substantially as specified.

5. In a mixing-machine, a shaft, a leadscrew, a pair of clutches forcoupling said parts, a threadeds leeve mounted on the leadscrew, acarriage engaged thereby, boaters connected to the carriage, ashipping-rod havin tap' ets, spring-actuated plungers slidab e in t etappets, an overbalanced link pivoted. to the shipping-rod, and meansfor operatively connecting said rod to the clutches,

substantially as specified.

6. In a mixing-machine, a lead-screw, a sleeve movable longitudinallyupon said screw and provided with arms, a carriage adapted to be engagedby said arms, and means for movin the sleeve on the leadscrewindependent y of the carriage at the beginning of each stroke of thesleeve.

7. In a mixing-machine, a trough, and a mixing mechanism provided withbeaters, means for reciprocating the beaters within the trough, saidmeans being reciprocal independently of the beaters at each end of theirstroke.

8. In a mixing-machine, a trou h and a mixing mechanism provided witrotary beaters, means for reciprocating the heaters in the trough, andmeans for arresting the reciprocation of the heaters at the end of eachstroke.

9. In a mixing-machine, a trough, and a mixing mechanism provided withbeaters, means for imparting a rotary and reciprooatory movement to thebeaters, and means for limiting the beaters to one of said movementstemporarily at one end of their stroke.

Signed .by meat New York city, (Manhatten,) New York, this 23d day ofJanuary,

